A granular material containing 40 per cent moisture is fed to a counter current rotary dryer at a temperature of 295 K and is withdrawn at 305 K, containing 5 per cent moisture. The air supplied which contains 0.006 kg water vapour/kg dry air, enters at 385 K and leaves at 310 K. The dryer handles 0.125 kg/s wet stock. Assuming that radiation losses amount to 20 kJ/kg dry air used. The latent heat of water vapour at 295 K = 2449 kJ/kg, specific heat capacity of dried material = 0.88 klkg K, the specific heat capacity of dry air 1.00 kJ/kg K, and the specific heat capacity of water vapour 2.01 kJ/kg K 2.1. Determine the mass flowrate of dry air supplied to the dryer, Mig- GF=m 2.2 Determine the humidity of the exit air Hy=? ngci+tta Tha)